#include <stdio.h>
int main18()
{
	int a = 10;
	int b = 5;
	printf("%d\n", a + b);
	printf("%d\n", a - b);
	printf("%d\n", a * b);
	printf("%d\n", a / b);
	printf("%d\n", a % b);
	
	printf("%d\n", a++);
	printf("%d\n", b--); 
	printf("%d\n", ++a);
	printf("%d\n", --b);

	printf("%d\n", a += 5);
	printf("%d\n", a -= 5);
	printf("%d\n", a -= 5);
	printf("%d\n", a -= 5);
	printf("%d\n", a %= 5);

	return 0;
}